👉 Otolaryngology is a branch of medicine that focuses on the study and treatment of the ear, nose, throat (tonsil), and larynx. It includes diagnosis, surgery, and research related to these structures. Otolaryngologists diagnose conditions such as hearing loss, sinusitis, tonsillitis, pharyngitis, and other disorders affecting the ears, nose, and throat. They also perform surgeries on ear, nose, and throat conditions. Otolaryng